Improved curtain-fixttjre device tor stopping the motion op cords



ftntrd taie stent @wird vLetters Patent No. 95,994; dated October 19,1869.

IMPRO'VED CURTAIN-FIXTURE DEVICE FOR STOPPIN G- THE MOTION OF COIRIDS.y

The Schedule referred to in these Letters Patent and making part of thesame.

' y To all whom 'it may concern:

Be it known that I, ALFRED S. Dickinson, of the city, county, and VStateof New York, have invented a new and useful Device for Stopping theMotion of Cords and Ropes; and I do hereby declare lthat the followingis a full, clear, and exact description thereof, reference being had tothe annexed drawings, making part of this specification, in which-Figure 1 represent-s -a perspective view of, the device, shQwing itsposition while the rope which reeves through it is in motion.

Figure 2 is a similar view, showing the device in the position itassumes in stopping the motion lot' the rope.

Figure 3 is a front elevation.

The saine letters are used in all the figures to designate identicalparts.

The nature of my invention consists iu producing a device for checkingor stopping the motion of cords or ropes in the form of a short tube,through which the cord is passed, and which is pivoted at its upper end,and provided" with a slit in one side, said slit being in' connectionwith the orifice at the upper end of the tube, and tapering, in passingdown, to near the lower end, where it terminates.

'lo enable those skilled in the art to make and use my invention, I willproceed to describe its constructioniand operation.

In the drawings- A represents the tube or device by which the motion ofa cord or rope, B, is to be stopped.

This tube may be constructed, as shown in the drawings, and mayl he of'any desired dimensions. The upper portion of the tube is, in thisinstance, somewhat enlarged on one side, which enlarged portion isflattened, so as tofit between the flanges of the bridge i, to which itis pivoted by a piu, a, passing through perforations in the flanges andtube. The outer side of the tubewhich is opposite the enlargementthereon--is provided with a slit, A', which is of' the size of, andconnects wit-h the orifice of the tube at top, and thence extendsdownward, tapering, to near its lower end, at its termination coming tonear a point, as shown Vin fig. 3. The edges of' this slit are roundedso as to prevent injury to the cord or rope in wedging into it.

G represents a frame or bridge constructed with outwardly-projectingauges, c, betweenwhioh the tube A is to be hung, as clearly shown in thedrawings. This frame may besecured at any desired point. The particularform of the frame shown, I deem a desirable one where the device is tobe used for stopping the motion ofthe cords of window-curtains; but itis apparent that such frame may be constructed in various forlns withoutdeviating from the nature of my invention.

The operation of this device may be described as follows:

I will suppose it to be applied to stop the motion of a cord of awindow-curtain. The device having been arranged in the .proper place,the lower end of the cord is passed through the tube, from top tobottoni, as shown in fig. 1, when it will oer no resistance to themotion ofthe cord in raising or lowering the curtain. To stop the motionof the cord, throw the tube up to the position shown in fig. ,2, whenthe weight of the curtain will at once wedge the cord into the slit, bythe bite of' which it will be securely held until the tube is againturned down.

Figure 4 shows a modification of the construction of the tube, which lconsider, for many purposes, superior to the one just described. Itsdistinguishing feature consists in an additional short tapering slit inthe lower end of the tube, and opposite the main slit; portion of theperiphery of the tube being elongated to have this slit formed in it, asshown, the object being, that the rbpe, after having been wedged intothe outer or upper slit by throwing the tube up, shall form a shortbreak, and then recede into the lower slit,

4and thus be held more securely.

ALFRED S. DICKINSON.

witnesses.

Witnesses JAMES WARING, .Tassa OAKLEY.

